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- NEW Built-in Wi-Fi
- German equatorial design, latitude range of 10° ~ 70°
- Ideal for both visual observation and astrophotography
- Low periodic error (< ± 10 arc seconds)
- Payload of 12.7 kg (28 lbs) with the mount-only weight of 4.5 kg (10 lbs)
- CNC machined and cast metal body
- Spring loaded gear system
- Large easy to use quick-lock gear clutches
- Stepper motor with low power consumption
- Polar alignment routine for those who can’t see the Pole Star
- Go2Nova® 8409 controller with Advanced GOTONOVA® GOTO Technology
- Integrated ST-4 autoguiding port
- Built-in Wi-Fi
- USB port for firmware upgrade and computer control
- Standard LiteRoc heavy-duty stainless steel tripod w/ vibration suppression pads (7.5kg)
- Die-cast metal tripod spreader with accessory tray
- Hard carrying case
- Optional 32-channel Global Positioning System (GPS)
- Optional iGuiderTM autoguiding system (#3360)
Introducing iOptron’s new compact next-generation german equatorial mount the GEM28!
Like their predecessors, the GEM28 is designed with portability in mind, weighing in at only 10 lbs it can support up to a 28lb payload an incredible 2.8 mount weight to payload ratio.
Building on the legacy of earlier GEM models we have added features for convenience and functionality. A positive lock gear engagement system (easy to use even when wearing gloves), Built-in Wi-Fi enabling unparalleled connectivity and recordable permanent periodic error correction (PPEC) to repeat optimal PEC training sessions. Regarding functionality the GEM28 delivers precise pointing and accurate tracking. The 212,000 object library ensures you’ll never run out of targets to see or image. The GEM28 sets the new standard for compact equatorial mounts.
The GEM28 is equipped with the latest advanced GOTONOVA® GOTO technology, making it one of the most powerful and accurate GOTO mounts available. Its database includes over 212,000+ objects. The Go2Nova® Hand Controller is intuitive to use and its large 4-line LCD screen simplifies the process of setting telescopes and locating objects.
The GEM28 mount has an optional integrated electronic polar finder scope known as the iPolar. A high resolution optical encoder with real-time PEC delivers accurate tracking with PE <0.3 arcsec RMS. Built-in Wi-Fi enabling unparallel connectivity. The GEM28EC sets the new standard for compact German equatorial goto mounts.
GEM28EC
The GEM28EC mount has an integrated electronic polar finder scope known as the iPolar. This tool ensures the accurate alignment of a telescope, even when the pole star is obscured. It comes with a LiteRoc heavy duty stainless steel tripod and an aluminum carrying case
Shipping Box #1: G284A-GEM28EC Head w/ iPolar/Case/Tray (G284A)
Shipping Box #2: 8283-CEM26/GEM28 LiteRoc Tripod w/o Tray (C26/G28 LiteRoc)
| GEM28 | |
| Mount | German Equtorial Mount |
| Max payload* | 12.7 kg (28 lbs), exclude CW |
| Mount weight | 4.5 kg (10 lbs) |
| Payload/Mount weight | 2.8 |
| Structure Material | All metal, Casting + CNC machined |
| Exterior Finish | Powdwer coating |
| Latitude adjustment range | 10° ~ 70° |
| Azimuth adjustment range | ± 6° |
| Tracking accuracy (PE)** | GEM28 <±10arcsec / GEM28EC <0.3 arcsec RMS |
| PEC | PPEC/Realtime PEC (GEM28EC) |
| Period | 600 sec |
| Worm diameter | Φ15.2 mm, Brass |
| Right Ascension worm wheel | Φ88 mm, 144 teeth, zero backlash |
| Declination worm wheel | Φ88 mm, 144 teeth, zero backlash |
| Right Ascension axis shaft | Φ35mm steel |
| Declination axis shaft | Φ35mm steel |
| Right Ascension bearings | Φ55mm ball bearing |
| Declination bearings | Φ55mm ball bearing |
| Counterweight shaft | Φ20X200 mm (M16), Stainless Steel |
| Shaft extension | Φ20X120 mm (M16), Stainless Steel |
| Counterweight | 4.5kg (10 lbs) X1 |
| Motor | Precision stepper motor, 1.8°/128X micro-step |
| Motor resolution | 0.17 arcsec |
| Transmission | Synchronous belt |
| Hand Controller | Go2Nova® 8409, 4 line 21 character LCD |
| Star Database | 212,000+, star identification |
| Power | DC 12V, 5A |
| AC adapter | 100V ~ 240V (included) |
| Power consumption | 0.6A(Tracking), 0.9A(GOTO) |
| Polar scope | AccuAlign TM polar scope/Internal iPolar TM |
| Meridian treatment | Stop (0-10° pass), flip |
| Dovetail saddle | 3.8" Vixen, center adjustable |
| Max slew speed | 6°/sec (1440x) |
| Guiding port | ST-4 |
| Communication port | USB, WiFi |
| WiFi | Built in WiFi |
| Tripod | 1.5" Stainless Steel, optional LiteRoc |
| Hard case | GEM28 optional, GEM28EC included |
| GPS | optional/external |
| Autoguiding | Optional external iGuider |
| Operation temperature | -10ºC ~ 40ºC |
| Warranty | Two year limited |